<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card class="box-card">
      <div>
        <!-- 搜索和添加 -->
        <el-row :gutter="20">
          <el-col :span="7">
            <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              class="input-with-select"
              clearable
              @clear="getUserList"
            >
              <el-button
                type="primary"
                icon="el-icon-search"
                slot="append"
                @click="getUserList"
                >搜索</el-button
              >
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true"
              >添加用户</el-button
            >
          </el-col>
        </el-row>
      </div>
      <!-- 用户列表区域 -->
      <el-table :data="usersList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"> </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-tooltip
              effect="dark"
              content="修改"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-tooltip
              effect="dark"
              content="删除"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserByid(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 分配角色 -->
            <el-tooltip
              effect="dark"
              content="分配"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRoleDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 6]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDiglogClose"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <P>分配新角色
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </P>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的检验规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/;
      if (regEmail.test(value)) {
        //合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱"));
    };
    // 验证手机号的校验规则
    var checkMoblie = (rule, value, cb) => {
      const regMobile =
        /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/;
      if (regMobile.test(value)) {
        return cb();
      }
      cb(new Error("请输入合法的手机号码"));
    };
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        // 当前页数
        pagenum: 1,
        // 当前页码显示多少数据
        pagesize: 2,
      },
      //用户列表
      usersList: [],
      //总数据条数
      total: 0,
      //控制对话框的显示
      addDialogVisible: false,
      //修改用户对话框的显示
      editDialogVisible: false,
      // 分配用户对话框的显示
      setRoleDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        uersname: "",
        password: "",
        email: "",
        mobile: "",
      },
      //查询用户对象保存
      editForm: {},
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名称", trigger: "blur" },
          { min: 3, max: 8, message: "长度在 3 到 8 个字符", trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkMoblie, trigger: "blur" },
        ],
      },
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色的数据列表
      rolesList: [],
      // 已经选择角色的id值
      selectedRoleId:''
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    //获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200)
        return this.$message.error("获取用户列表失败");
      this.usersList = res.data.users;
      this.total = res.data.total;
      console.log(res.data);
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch开关状态改变
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("修改错误");
      }
      this.$message.success("修改成功");
    },
    //监听添加用户对话框的关闭事件
    addDiglogClose() {
      this.$refs.addFormRef.resetFields();
    },
    //点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        // valid为true代表预验证成功，false代表预验证失败
        if (!valid) return;
        // 发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) return this.$message.error("添加用户失败");
        this.$message.success("添加用户成功");
        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      this.editDialogVisible = true;
      const { data: res } = await this.$http.get(`users/${id}`);
      if (res.meta.status !== 200)
        return this.$message.error("查询用户信息失败");
      this.editForm = res.data;
    },
    //监听修改用户对话框关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //修改用户的预验证
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          { email: this.editForm.email, mobile: this.editForm.mobile }
        );
        if (res.meta.status !== 200) return this.$message.error("更新用户失败");
        this.editDialogVisible = false;
        this.getUserList();
        this.$message.success("修改成功");
      });
    },
    //根据id删除对应的数据
    async removeUserByid(id) {
      //弹框询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      //如果用户确定删除返回字符串 confirm 用户取消了删除则返回值为cancel
      if (confirmResult !== "confirm")
        return this.$message.error("已经取消删除");
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) return this.$message.error("删除用户失败");
      this.$message.success("删除用户成功");
      this.getUserList();
    },
    // 分配角色对话框的显示
    async setRoleDialog(userInfo) {
      this.userInfo = userInfo;
      //在展示对话框之前，获取所有用户的列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200)
        return this.$message.error("获取角色列表失败");
      this.rolesList = res.data;
      this.setRoleDialogVisible = true;
    },
    // 点击按钮分配角色
    async saveRoleInfo(){
      if(!this.selectedRoleId){
        this.$message.error('请选择要更改的角色');
      }
      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId});
      console.log(res);
      if(res.meta.status !== 200) return this.$message.error('修改角色失败');
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    //监听设置角色对话框关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId = '',
      this.userInfo = {}
    }
  },
};
</script>

<style lang="less" scoped>
</style>